Seg fault with high res 16 bit JPEG2000 resources

[datschy]

We at work encountered segmentation faults, if the requested resolution on 16 bit JP2 resources is very high. I've played a little bit around with builds, one setup using the current head of the master branch (efcf57f), to work with the newer version of Kakadu, and Kakadu 8.2.1 and another one using the iipsrv 1.1 release and OpenJPEG 2.4.0. I created a few simple test images and it seems that the seg faults happen just with 16 bit JP2 files above a certain resolution, independent of the used JP2 library (see table). If we define a smaller supported size in the call, it works (e.g. /<testfile>/full/4500,5500/0/default.jpg).

Test call: /<testfile>/full/full/0/default.jpg

file	file size	width	height	channels	bits	raw size	success kdu	success opj
test01.jp2	2.8 KB	5000	7000	3	16	200.3 MB	yes	yes
test02.jp2	4.8 KB	8000	10000	3	16	457.8 MB	yes	yes
test03.jp2	6.8 KB	9000	11000	3	16	566.5 MB	no	no
test04.jp2	7.0 KB	10000	12000	3	16	686.6 MB	no	no
test05.jp2	11.1 KB	12000	16000	3	16	1098.6 MB	no	no
test06.jp2	8.9 KB	16500	22000	3	8	1038.6 MB	yes	yes
test07.jp2	11.8 KB	20000	25000	3	8	1430.5 MB	yes	yes

[ruven]

This is probably a memory issue. What do you see in the iipsrv log file? If so, you should see a line which says "Error: Unable to allocate memory" for the images that don't work. The sizes are not so huge, so check whether you have any user memory limits set.